Life lesson: If you see someone having s3x while driving a car, keep your eyes on the road.

Suzanne Welker, 31, was reportedly performing oral s3x on Ernest Felix Gonzales, 27, as he was driving an SUV on Florida's I-95 Sunday afternoon, according to WJXT-TV. The couple allegedly became irate when noticed that a family was watching them from another vehicle, and they followed the family for more than 10 miles before confronting them with a semiautomatic weapon.

Louis Carr, 24, says he was driving north on the interstate with his girlfriend, Kristin Broughman, and his 3-year-old son, and couldn't help but notice the Nassau couple doing the deed.

When the couple noticed the family staring, Carr says, Welker "jumped up in the seat bare butt, mooned us through the window."

Gonzalez then reportedly slowed his SUV, began to tail Carr's pickup truck, and even attempted to run him off the road and into a guardrail, according to the Florida Times-Union.

Carr ultimately pulled into the parking lot of a restaurant and bar owned by his parents. Gonzalez and Welker followed close behind. That, Carr told WJXT, is when "everything went crazy."

Welker and Gonzalez hopped out of their SUV, Welker toting a semiautomatic handgun. Witnesses say that Gonzalez approached Carr in a threatening manner. When witnesses announced that they were calling the police, the pair allegedly got back into their vehicle and drove away, UPI reports.

Carr and Broughman say the couple mistakenly thought they had taken photos of them having s3x.

Welker and Gonzalez were later arrested at their residence in Fernandina Beach. Both were charged with indecent exposure and aggravated a.ssault.

s3x, guns, and moving vehicles have caused trouble for a lot of Floridians lately. Earlier this month, Amanda Linscott was charged with armed robbery after she allegedly pulled a gun while having s3x with a man driving a car.

[pic - click to view] Suzanne Welker, Ernest Gonzales Had s3x In Car, Followed Family Who Watched, Pulled Gun: Cops